Clamp structure of processing machine

Abstract

The utility model discloses a clamp structure of a processing machine, and relates to the technical field of clamps. The oil cylinder comprises a base block, an oil cylinder body is fixedly arranged on the lower surface of the base block, a piston is arranged in the oil cylinder body, a pin shaft is connected in the base block, the pin shaft penetrates through the piston, and a fixed rotating shaft is connected in the base block. When the lower piston is driven, the movable block drives the crank arm to rotate around the fixed rotating shaft, and therefore the sliding block is shifted to achieve horizontal movement. Due to the existence of the angular freedom degree of the movable block, the left sliding block and the right sliding block achieve left-right position complementation, so that the self-adaptive clamping function of the clamping jaw is achieved, finally the final position can be fixed through the first locking oil cylinder and the second locking oil cylinder, the device is compact in structure, small in size and large in stroke, and compared with a solution for similar problems, the device is lowest in cost and convenient to use. The method is easy to popularize and apply, reliable in self-adaption, high in precision and good in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp structure for a processing machine. Background Art

[0002] A fixture refers to a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position for construction or testing. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a fixture.

[0003] During the machining process, it is often encountered that after the workpiece is precisely positioned, it is difficult to achieve clamping (clamping) without affecting the existing positioning due to the large differences in individual shapes. For example, after the center hole of special-shaped shaft parts is positioned (there are individual differences in the dimensions of the other surfaces), angular positioning and clamping become a difficult problem to solve when machining a certain side shape. Utility Model Content

[0004] In order to solve the problem that, during the machining process, after the workpiece is precisely positioned, it is difficult to achieve compression (clamping) without affecting the existing positioning due to the large differences in individual shapes. For example, after the center hole of special-shaped shaft parts is positioned (there are individual differences in the dimensions of the other surfaces), when realizing the processing of a certain side shape, angular positioning and clamping becomes a difficult problem; the purpose of this utility model is to provide a processing machine clamp structure.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a processing machine clamp structure, including a base block, a cylinder body is fixedly provided on the lower surface of the base block, a piston is provided inside the cylinder body, a pin is connected to the inside of the base block, the pin passes through the piston, a fixed rotating shaft is connected to the inside of the base block, a crank arm is sleeved on the outer surface of the fixed rotating shaft, a movable block is provided inside the base block, the movable block is in contact with the piston and the crank arm, a slider is slidingly provided on the base block, the upper end of the crank arm is provided inside the slider, a first locking cylinder is provided on one side of the base block, and a second locking cylinder is provided on the side of the base block away from the first locking cylinder, the first locking cylinder and the second locking cylinder are both in contact with the lower surface of the slider, and a claw is provided on the upper surface of the slider.

[0006] Preferably, the first locking cylinder and the second locking cylinder are symmetrically arranged on the side of the base block, two fixed rotating shafts are provided, and the fixed rotating shafts are symmetrically arranged inside the base block, two sliding blocks are provided, and the sliding blocks are symmetrically arranged on the upper surface of the base block, and two movable blocks are provided, and the movable blocks are symmetrically arranged inside the base block.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] This utility model features a movable block with a certain degree of angular freedom around a pin. When the piston below is actuated, the movable block drives the crank arm to rotate around a fixed axis, thereby shifting the slider to achieve horizontal motion. This angular freedom allows the left and right sliders to achieve complementary positions, thus enabling adaptive clamping of the jaws. Finally, the first and second locking cylinders secure the final position. This device boasts a compact structure, small size, and a large travel range. Compared to similar solutions, this device offers the lowest cost, ease of application, reliable adaptation, high precision, and excellent reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 This is a schematic structural diagram of the utility model.

[0011] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0012] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model.

[0013] In the figure: 1. Base block; 11. Cylinder body; 2. Piston; 3. Pin; 4. Fixed shaft; 5. Crank arm; 6. Movable block; 7. First locking cylinder; 8. Second locking cylinder; 9. Slider; 10. Claw. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] Example: Figure 1-3As shown, the utility model provides a processing machine clamp structure, including a base block 1, a cylinder body 11 is fixedly provided on the lower surface of the base block 1, a piston 2 is provided inside the cylinder body 11, a pin 3 is connected to the inside of the base block 1, the pin 3 passes through the piston 2, a fixed rotating shaft 4 is connected to the inside of the base block 1, a crank arm 5 is sleeved on the outer surface of the fixed rotating shaft 4, a movable block 6 is provided inside the base block 1, the movable block 6 is in contact with the piston 2 and the crank arm 5, a slider 9 is provided on the base block 1 for sliding, The upper end of the crank arm 5 is arranged inside the slider 9. A first locking cylinder 7 is provided on one side of the base block 1, and a second locking cylinder 8 is provided on the side of the base block 1 away from the first locking cylinder 7. The first locking cylinder 7 and the second locking cylinder 8 are both in contact with the lower surface of the slider 9. The upper surface of the slider 9 is provided with a claw 10. The movable block 6 of the utility model has a certain degree of angular freedom around the pin 3. When the lower piston 2 is driven, the movable block 6 drives the crank arm 5 to rotate around the fixed rotation axis 4, thereby moving the slider 9 to achieve horizontal movement. Due to the existence of the angular freedom of the movable block 6, the left and right sliders 9 can achieve left and right position complementarity, thereby realizing the adaptive clamping function of the claw 10. Finally, the final position can be fixed by the first locking cylinder 7 and the second locking cylinder 8. This device has a compact structure, small size, and large stroke. Compared with solutions to similar problems, this device has the lowest cost, is easy to popularize and apply, is reliable in adaptation, has high precision, and good reliability.

[0016] The first locking cylinder 7 and the second locking cylinder 8 are symmetrically arranged on the side of the base block 1, two fixed rotating shafts 4 are provided, and the fixed rotating shafts 4 are symmetrically arranged inside the base block 1, two sliders 9 are provided, and the sliders 9 are symmetrically arranged on the upper surface of the base block 1, two movable blocks 6 are provided, and the movable blocks 6 are symmetrically arranged inside the base block 1, and the cross-sectional shape of the piston 2 is an inverted "T" shape, which improves the stability of the equipment during use.

[0017] Working Principle: The movable block 6 of this utility model has a certain degree of angular freedom around the pin 3. When the lower piston 2 is driven, the movable block 6 drives the crank arm 5 to rotate about the fixed axis 4, thereby moving the slider 9 to achieve horizontal movement. Due to the angular freedom of the movable block 6, the left and right sliders 9 achieve complementary left and right positions, thereby realizing the adaptive clamping function of the claw 10. Finally, the first locking cylinder 7 and the second locking cylinder 8 fix the final position. This device has a compact structure, small size, and long travel. Compared with similar solutions, this device has the lowest cost, is easy to popularize, and has reliable self-adaptation, high precision, and excellent reliability.

[0018] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A processing machine clamp structure, comprising a base block (1), characterized in that: The lower surface of the base block (1) is fixedly provided with a cylinder body (11), the interior of the cylinder body (11) is provided with a piston (2), the interior of the base block (1) is connected with a pin shaft (3), the pin shaft (3) passes through the piston (2), the interior of the base block (1) is connected with a fixed rotating shaft (4), the outer surface of the fixed rotating shaft (4) is sleeved with a crank arm (5), the interior of the base block (1) is provided with a movable block (6), the movable block (6) is connected to the piston (2) and the crank arm (5), and the movable block (6) is connected to the piston (2) and the crank arm (5). The base block (1) is provided with a sliding block (9) for sliding movement, the upper end of the crank arm (5) is arranged inside the sliding block (9), a first locking oil cylinder (7) is provided on one side of the base block (1), and a second locking oil cylinder (8) is provided on the side of the base block (1) away from the first locking oil cylinder (7), the first locking oil cylinder (7) and the second locking oil cylinder (8) are both in contact with the lower surface of the sliding block (9), and a claw (10) is provided on the upper surface of the sliding block (9).

2. A processing machine clamp structure according to claim 1, characterized in that: The first locking oil cylinder (7) and the second locking oil cylinder (8) are symmetrically arranged on the side of the base block (1).

3. A processing machine clamp structure according to claim 1, characterized in that: Two fixed rotating shafts (4) are provided, and the fixed rotating shafts (4) are symmetrically arranged inside the base block (1).

4. A processing machine clamp structure according to claim 1, characterized in that: Two sliders (9) are provided, and the sliders (9) are symmetrically arranged on the upper surface of the base block (1).

5. A processing machine clamp structure according to claim 1, characterized in that: Two movable blocks (6) are provided, and the movable blocks (6) are symmetrically arranged inside the base block (1).

6. A processing machine clamp structure according to claim 1, characterized in that: The cross-sectional shape of the piston (2) is an inverted "T" shape.

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